Stretcher



FIG. 1 is a perspective view of a stretcher showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a side elevational view thereof, taken opposite that of FIG. 2;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The bottom of the stretcher that is not illustrated forms no part of the claimed design. 

The ornamental design for a stretcher, as shown and described. 